EP2529879A1 - Dispositif de guidage pour une unité mobile d'une machine-outil et machine-outil dotée d'un tel dispositif de guidage - Google Patents

Dispositif de guidage pour une unité mobile d'une machine-outil et machine-outil dotée d'un tel dispositif de guidage Download PDF

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Publication number
EP2529879A1
EP2529879A1 EP11168017A EP11168017A EP2529879A1 EP 2529879 A1 EP2529879 A1 EP 2529879A1 EP 11168017 A EP11168017 A EP 11168017A EP 11168017 A EP11168017 A EP 11168017A EP 2529879 A1 EP2529879 A1 EP 2529879A1
Authority
EP
European Patent Office
Prior art keywords
guide device
hollow profile
cavity
stiffening element
profile carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11168017A
Other languages
German (de)
English (en)
Other versions
EP2529879B1 (fr
Inventor
Gunter Harnisch
Carsten Knobel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trumpf Sachsen GmbH
Original Assignee
Trumpf Sachsen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trumpf Sachsen GmbH filed Critical Trumpf Sachsen GmbH
Priority to EP20110168017 priority Critical patent/EP2529879B1/fr
Publication of EP2529879A1 publication Critical patent/EP2529879A1/fr
Application granted granted Critical
Publication of EP2529879B1 publication Critical patent/EP2529879B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/017—Arrangements of ways

Definitions

  • the invention further relates to a machine tool for machining workpieces, in particular sheets, with a movement unit and with a guide device of the above type.
  • the state of the art is provided by the laser cutting machines of the TruLaser R Series 7000, which are offered by the company TRUMPF, D-71254 Ditzingen, Germany. These machines are laser flatbed machines, on which a workpiece support is run over by a portal with a relatively large span in the first axial direction of a horizontal plane.
  • the cross member of the portal runs in the second axial direction of the horizontal plane.
  • two laser cutting heads each move with a tool slide guided on the gantry cross member.
  • the portal cross member of the TruLaser R Series 7000 is made of lightweight construction.
  • Four thin steel sheets are welded at their longitudinal edges to a hollow profile carrier with a rectangular cross-section.
  • the welded together steel sheets enclose a cavity of the hollow profile carrier and accordingly form a cavity wall.
  • At the cavity facing the inner side corner reinforcements are welded into the corners of the cavity wall formed by the steel sheets, which extend along the hollow profile carrier.
  • the object of the present invention is to further develop the previously known guide devices and the machine tools provided therewith in such a way that the guide devices can be flexibly designed for the loads to be controlled in the individual case.
  • the hollow profile carrier of the guide device in addition to the cavity provided with the inner stiffening element has an outer cavity arranged on the outside thereof.
  • the cavity with the inner stiffening element and the cavity wall form a base body of the hollow profile carrier.
  • the outer cavity has a smaller cross section than the main body cavity and extends as well as this in the longitudinal direction of the hollow profile carrier.
  • the outer cavity wall is connected to the main body wall.
  • the outer cavity offers a possibility for additional stiffening of the hollow profile carrier. This option is then used when the load acting on the hollow profile carrier in an individual case requires this. According to the invention, therefore, the stiffening of the hollow profile carrier is modular.
  • the outer hollow space of the hollow profile carrier remains empty. Otherwise, an additional stiffening is applied in the outer cavity of the hollow profile carrier application-related.
  • the number of attached to the hollow profile carrier on the outside of the body outer cavities can be chosen differently according to the invention. Conceivable are a single but also several outer cavities. If a plurality of external cavities are present, all or only some of the cavities can be provided with an outer stiffening element as needed. Also, the or the outer stiffening elements can be selected as needed. For example, different materials and / or different cross sections of outer stiffening elements cause a different stiffening effect. By selecting specific outer cavities for accommodating outer stiffening elements and by means of the stiffening elements themselves, it is possible, in particular, to implement an additional stiffening of the hollow-section carrier dependent on the loading direction.
  • At least one corner of the base body wall in the main body interior is provided with a stiffening element.
  • an outer cavity is provided for receiving an additional stiffening at least one corner of the main body wall.
  • Claim 4 relates to a type of the invention, in the case of which is made of the possibility for additional stiffening of the hollow profile carrier use.
  • the design of the modular additional reinforcement in accordance with the invention depends on the requirements of the respective load case.
  • the outer stiffening element is elongated and it extends with its longitudinal direction in the longitudinal direction of the hollow profile carrier.
  • the guide device according to the invention according to claim 7 is provided with an outer stiffening element made of metal.
  • Reinforcement elements made of metal are primarily used when only an increase in the rigidity of the hollow section carrier is desired.
  • metal stiffeners are inexpensive.
  • stiffening elements made of plastic are preferred according to the invention (claims 8, 9).
  • the fiber material and / or the fiber volume content are flexibly selectable.
  • the matrix for the reinforcing fibers may be made of epoxy resin, for example.
  • Stiffening elements made of carbon fiber reinforced plastic have proved to be particularly effective. In experiments with such stiffening elements, a doubling of the rigidity of a hollow-section carrier was achieved with a mass increase by only five percent.
  • plastics introduced into the outer cavity of the hollow-section carrier can improve the vibration behavior of the hollow-section carrier by means of a damping effect.
  • an outer stiffening profile is provided as an outer stiffening element (claim 10).
  • Such a stiffening profile can be introduced in a particularly simple manner in the space provided for this purpose outer cavity of the hollow profile carrier. If an outer stiffening element consists of a material which is flowable in the initial state, the relevant outer hollow space of the hollow-section carrier can alternatively be filled with the relevant flowable material. After solidification or hardening, an outer stiffening element then results, which preferably completely fills the cross-section of the associated outer cavity.
  • outer stiffening elements or stiffening profiles in the form of hollow profiles for use come according to the invention.
  • connection between the outer cavity wall and the main body wall which is indispensable for the additional stiffening effect, can be produced according to the invention in different ways.
  • the outer cavity wall and the base body wall are integrally formed and / or welded together.
  • the guide device in addition to the or in the longitudinal direction of the hollow section carrier extending inner stiffeners and optionally in addition to the or the outer stiffening elements, at least one inner stiffening element, which is plate-like and extends with its main plane in the transverse direction of the hollow profile carrier.
  • stiffening elements so-called partition plates may be provided, which are mounted in the interior of the main body cavity and thereby spaced apart in the longitudinal direction of the hollow profile carrier.
  • Claim 15 relates to a type of machine tool according to the invention, in the case of which provided for the movement unit guide means is moved in its transverse direction.
  • a guide device is subject to special loads due to the dynamic stress and must therefore have a pronounced rigidity.
  • a guide device may only have as small a mass as a moving machine element. Both requirements can be met by the guide device according to the invention.
  • FIG. 1 is a designed as a laser flatbed machine 1 machine tool in the scope of a portal cross member 2 and a tool carriage 3 is shown.
  • the portal cross member 2 serves as a guide device for the tool carriage 3, which in turn forms a movement unit.
  • the unit of portal cross member 2 and 3 tool carriage can be taken.
  • the tool carriage 3 is guided on guide rails 4, 5 of the gantry cross member 2 in its longitudinal direction.
  • the guide rails 4, 5 are in turn mounted on a hollow profile carrier 6 of the portal cross member 2.
  • the hollow profile carrier 6 is a lightweight construction.
  • a main body 7 of the hollow section carrier 6 is composed of an upper cover plate 8, a lower cover plate 9, a front side plate 10 and a rear side plate 11. Said sheets are welded together at their longitudinal edges and form a base body wall 12 of the rectangular in cross section body 7. Deviating from the rectangular shape cross sections of the hollow profile base body are conceivable.
  • the base body wall 12 defines a base body cavity 13 located in its interior. In each corner, the base body wall 12 is provided on its inside with an inner reinforcing element.
  • Metal solid profiles 14 in the corners between the front side panel 10 and the cover plates 8, 9 and metal angles 15 in the corners between the rear side panel 10 and the cover plates 8, 9 are used as inner reinforcing elements.
  • cover sheets 8, 9 and also in the side plates 10, 11 is in the example shown to blanks of sheet steel with a thickness of 1.5 mm.
  • the metal solid sections 14 and the metal angle 15 are made of steel.
  • stiffening elements in the form of bulkhead plates 16 for stiffening the body 7 of the hollow section carrier 6.
  • the bulkhead plates 16 have a frame-like shape and extend with its main plane in the transverse direction of the hollow section carrier 6.
  • a stiffening profile 17 is another provided in the longitudinal direction of the hollow profile carrier 6 extending inner stiffening element and is placed for stiffening the front side plate 10 on the inside.
  • the stiffening profile 17 is welded to the base body wall 12 over the entire length of the hollow profile carrier 6.
  • an outer hollow body 18 is placed on the main body wall 12 at each corner of the base body 7.
  • Each of the outer hollow bodies 18 has an outer cavity wall 19 (which is welded to the main body wall 12).
  • FIG. 2 This each defines an outer cavity 20, which is divided into two outer hollow chambers 21, 22.
  • Reinforcing plates 23 provide for a stabilization of the connection between the outer cavity wall 19 and the base body wall 12. In place of the stiffening plates 23, for example, stiffening profiles can be provided.
  • the cross section of the outer cavity 20 is substantially smaller than the cross section of the main body cavity thirteenth
  • outer hollow bodies 18 provide space for the accommodation of outer stiffening elements. Whether and, if appropriate, to what extent outer stiffening elements are introduced into the outer hollow body 18 of the hollow profile carrier 6, depends on the load of the hollow profile carrier 6 and the entire portal cross member 2 in the particular application.
  • the portal cross member 2 without any external stiffening element.
  • stiffeners of the hollow section support 6 are sufficient.
  • FIGS. 3 and 4 show the portal cross member 2 in the embodiment for an application, in addition to the internal stiffening measures according to the Figures 1 and 2 an outer stiffening of the hollow profile carrier 6 requires.
  • an outer stiffening element 24 is inserted into both outer hollow chambers 21, 22 of all outer hollow bodies 18 of the hollow profile carrier 6.
  • the outer stiffening elements 24 in the illustrated example are stiffening hollow profiles which have been introduced into the outer hollow chambers 21, 22 of the outer hollow body 18 from an end face of the hollow profile carrier 6.
  • the outer stiffening elements 24 extend over the entire length of the hollow-profile carrier 6 and abut against the respective outer cavity wall 19 from the inside.
  • stiffening hollow sections are also stiffening solid profiles in question.
  • the material of the outer stiffening elements 24 is selected depending on the particular application. Preference is given to outer reinforcing elements 24 made of fiber-reinforced plastic, in particular of carbon fiber reinforced plastic ("CFRP").
  • outer stiffening elements 24 in all but only in individual of the outer hollow body 18 of the hollow profile support 6 and / or in both but only in one of the outer hollow chambers 21, 22.
  • the rigidity of the hollow-section carrier 6 or of the portal cross-member 2 can be adapted flexibly to different load cases.
  • a direction-dependent stiffening of the hollow profile carrier 6 or of the portal cross member 2 can be realized.
  • a corresponding lower cover plate can form the lower end of the hollow profile carrier 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
EP20110168017 2011-05-30 2011-05-30 Dispositif de guidage pour une unité mobile d'une machine-outil et machine-outil dotée d'un tel dispositif de guidage Active EP2529879B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20110168017 EP2529879B1 (fr) 2011-05-30 2011-05-30 Dispositif de guidage pour une unité mobile d'une machine-outil et machine-outil dotée d'un tel dispositif de guidage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110168017 EP2529879B1 (fr) 2011-05-30 2011-05-30 Dispositif de guidage pour une unité mobile d'une machine-outil et machine-outil dotée d'un tel dispositif de guidage

Publications (2)

Publication Number Publication Date
EP2529879A1 true EP2529879A1 (fr) 2012-12-05
EP2529879B1 EP2529879B1 (fr) 2013-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038183A1 (fr) * 2014-09-11 2016-03-17 Sauer Gmbh Machine-outil
CN106808213A (zh) * 2015-11-30 2017-06-09 湖南衡泰机械科技有限公司 一种数控雕铣机横梁

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020103676B4 (de) 2020-02-12 2022-07-07 Leibniz-Institut für Polymerforschung Dresden e. V. Werkzeugschlitten zur Aufnahme, Befestigung und Führung einer Werkzeugspindel für Werkzeugmaschinen und Vorrichtung zur Genauigkeitsbearbeitung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216440A (en) * 1988-03-12 1989-10-11 Boart A feed beam arrangement for a rockdrill
FR2642692A1 (fr) * 1989-02-08 1990-08-10 Roty Fils Sarl Dispositif de butee de positionnement
FR2820070A1 (fr) * 2001-01-31 2002-08-02 Jean Paul Coron Corps profile monobloc destine a inclure un organe moteur et module lineaire realise a partir d'un tel corps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2216440A (en) * 1988-03-12 1989-10-11 Boart A feed beam arrangement for a rockdrill
FR2642692A1 (fr) * 1989-02-08 1990-08-10 Roty Fils Sarl Dispositif de butee de positionnement
FR2820070A1 (fr) * 2001-01-31 2002-08-02 Jean Paul Coron Corps profile monobloc destine a inclure un organe moteur et module lineaire realise a partir d'un tel corps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038183A1 (fr) * 2014-09-11 2016-03-17 Sauer Gmbh Machine-outil
CN107000140A (zh) * 2014-09-11 2017-08-01 萨奥有限公司 机床
US10464142B2 (en) 2014-09-11 2019-11-05 Sauer Gmbh Machine tool
CN106808213A (zh) * 2015-11-30 2017-06-09 湖南衡泰机械科技有限公司 一种数控雕铣机横梁

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Publication number Publication date
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